(function () {
  let myChart = echarts.init(document.querySelector(".left3"));

  // prettier-ignore
  let dataAxis = ['点', '击', '柱', '子', '或', '者', '两', '指', '在', '触', '屏', '上', '滑', '动', '能', '够', '自', '动', '缩', '放'];
  // prettier-ignore
  let data = [220, 182, 191, 234, 290, 330, 310, 123, 442, 321, 90, 149, 210, 122, 133, 334, 198, 123, 125, 220];
  let yMax = 500;
  let dataShadow = [];
  for (let i = 0; i < data.length; i++) {
    dataShadow.push(yMax);
  }
  let option = {
    title: {
      text: "特性示例：渐变色 阴影 点击缩放",
      subtext: "Feature Sample: Gradient Color, Shadow, Click Zoom",
    },
    xAxis: {
      data: dataAxis,
      axisLabel: {
        inside: true,
        color: "#fff",
      },
      axisTick: {
        show: false,
      },
      axisLine: {
        show: false,
      },
      z: 10,
    },
    yAxis: {
      axisLine: {
        show: false,
      },
      axisTick: {
        show: false,
      },
      axisLabel: {
        color: "#999",
      },
    },
    dataZoom: [
      {
        type: "inside",
      },
    ],
    series: [
      {
        type: "bar",
        showBackground: true,
        itemStyle: {
          color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
            { offset: 0, color: "#83bff6" },
            { offset: 0.5, color: "#188df0" },
            { offset: 1, color: "#188df0" },
          ]),
        },
        emphasis: {
          itemStyle: {
            color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
              { offset: 0, color: "#2378f7" },
              { offset: 0.7, color: "#2378f7" },
              { offset: 1, color: "#83bff6" },
            ]),
          },
        },
        data: data,
      },
    ],
  };
  // Enable data zoom when user click bar.
  const zoomSize = 6;
  myChart.on("click", function (params) {
    console.log(dataAxis[Math.max(params.dataIndex - zoomSize / 2, 0)]);
    myChart.dispatchAction({
      type: "dataZoom",
      startValue: dataAxis[Math.max(params.dataIndex - zoomSize / 2, 0)],
      endValue:
        dataAxis[Math.min(params.dataIndex + zoomSize / 2, data.length - 1)],
    });
  });

  myChart.setOption(option);
  window.addEventListener("resize", function () {
    myChart.resize();
  });
})();
